3 red dots, form from a triangle into a line, then combine into 1 dot, which contined moving east.

Driving down I-89 north from Massachusetts heading to new hampshire, saw 3 red light dots. We watched them go from a triangle, to a straight line, back to a triangle and then combine into one light. Which continued to move east. we are very unsure of what we saw but it was definately a UFO!